//1. 使用commonjs的模块化规范
const {add,mul}=require('./mathUtils.js');
console.log(add(20,30));
console.log(mul(30,40));

//2.使用ES6的模块化的规范
import {name,age,height} from './info.js'
console.log(name)
console.log(age)
console.log(height)